Austrian daredevil Felix Baumgartner fell to Earth from 24 miles up Sunday, enrapturing millions of people following a live feed of his stunt as he became the first human being to travel faster than the speed of sound without the assistance of a craft.

During a four-minute, 20-second free fall, he reached a speed of Mach 1.24 or 833.9 miles per hour, according to an official with the National Aeronautic Association.

The data on Baumgartner’s jump is preliminary until verified by international authorities, including those in Austria, Baumgartner’s home country.